$assetPath : "../img"
$v : 5
//px转rem
$px: 1rem/20

//公共 基础类
@mixin clearFix
  &:before
    content: ""
    display: table
  &:after
    content: ""
    display: table
    clear: both
    overflow: hidden
  zoom: 1
.clearfix 
  @include clearFix
//box布局
@mixin box($horizontal: initial, $vertical: initial)
  display: -webkit-box
  display: box
  -webkit-box-pack: $horizontal
  box-pack: $horizontal
  -webkit-box-align: $vertical
  box-align: $vertical
@mixin nowrap
  display: block
  white-space: nowrap
  overflow: hidden
  text-overflow: ellipsis
